another 9" question
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,769
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From: Northeast Nebraska
another 9" question
so guys, here's the situation...i've got me an 81 f-150, see my signature for the rest, but my rear diff took a dump on me...well, i got it tore apart and turns out that the splines on the axles and on the side gears are stripped out. i've got 31 spline axles and i guess wat my question is if the side gears that spline on to my axles are replaceable and w/o buying a whole new rear end? and if so, how bad is it to change them out?
Carpenter Local 745
Joined: Apr 2006
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From: on da beach
double post
Detroit Trutrac
Expensive, but solid.
Detroit Truetrac, 31, 1981, Detroit Locker, Differential & Rear-End Components, F-150 PICKUP, FORD, Drivetrain - summitracing.com
Detroit Trutrac
Expensive, but solid.
Detroit Truetrac, 31, 1981, Detroit Locker, Differential & Rear-End Components, F-150 PICKUP, FORD, Drivetrain - summitracing.com
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
One thing great about the 9 in. You can take JUST the third member to a shop and have them replace your carrier, and they can set up the gears for you and everything else. (In other words you can hand carry it in and leave the rest of the truck at home.)
You should get a new set of axles, bearings and seals. Replace the parts and drive your truck for another 200,000 miles.
You are going to have to get every single piece of metal shaving out of the pumpkin anyway, so you might as well pull the diff and replace it with a new carrier (A limited slip would be better).
That is just my thoughts, your there, it needs work, do it up right and forget about it.
Superior Axle and Gear PA5390 - Superior Axle and Gear Evolution Series Rear Axle Kits - summitracing.com
You can get the axles out in a matter of minutes and the third member out and to a shop in a no time at all.
You should get a new set of axles, bearings and seals. Replace the parts and drive your truck for another 200,000 miles.
You are going to have to get every single piece of metal shaving out of the pumpkin anyway, so you might as well pull the diff and replace it with a new carrier (A limited slip would be better).
That is just my thoughts, your there, it needs work, do it up right and forget about it.
Superior Axle and Gear PA5390 - Superior Axle and Gear Evolution Series Rear Axle Kits - summitracing.com
You can get the axles out in a matter of minutes and the third member out and to a shop in a no time at all.
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,769
Likes: 29
From: Northeast Nebraska
thanks man...i probably should have added that i'm planning on gearing it down when i someday put 35" tires on her to probably 4.11 and it's at 3:1 now, so i just wanna quick fix it to get it going...i've already got axles, seals, and bearings on my parts list now, but the last thing is the side gears, otherwise the rest of the carrier is pristine.
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
You know what then, PM NumberDummy and ask him for the PNs for a stock 9 inch.
Order the side gears from one of the FTE sponsors and ask for an FTE discount.
You don't need us, looks like you got everything covered already!
You will need to get a better diff for those 35s! Detroit Locker?
summit has 2 and 4 pin
Superior Axle and Gear 85-2011 - Superior Axle and Gear Internal Carrier Rebuild Kits - summitracing.com
Order the side gears from one of the FTE sponsors and ask for an FTE discount.
You don't need us, looks like you got everything covered already!
You will need to get a better diff for those 35s! Detroit Locker?
summit has 2 and 4 pin
Superior Axle and Gear 85-2011 - Superior Axle and Gear Internal Carrier Rebuild Kits - summitracing.com
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
now you tell me, ^^^^^^those parts are for open diffs ^^^^^^^
I think they may have some for LSDs.
You should go poke around there too, I would also go to the Currie enterprise site too.
I think they may have some for LSDs.
You should go poke around there too, I would also go to the Currie enterprise site too.
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,769
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From: Northeast Nebraska
kool, thanks, u kinda read my mind there, when i do gear everything down, my plan was to put a locker it the rear (been kinda lookin at detroit already) and drop the front TBI for a D44 out of a 70's truck or bronco, would just rather have that solid front end under her, i'm sure most all u guys agree...
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If its a Ford 9" limited slip you can get side gears from a open carrier and use them. You will have to grind the shoulder off the one that you put on the clutch pack side though.Take a grinder and cut as much off the gear as you safely can then find a machine shop to finish it up. I've done this more than a few times. It works fine and doesn't cost much.
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